2151323151122 has 4 divisors (see below), whose sum is σ = 3226984726686. Its totient is φ = 1075661575560.

The previous prime is 2151323151079. The next prime is 2151323151143. The reversal of 2151323151122 is 2211513231512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1761908462161 + 389414688961 = 1327369^2 + 624031^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537830787779 + ... + 537830787782.

Almost surely, 2^{2151323151122} is an apocalyptic number.

2151323151122 is a deficient number, since it is larger than the sum of its proper divisors (1075661575564).

2151323151122 is a wasteful number, since it uses less digits than its factorization.

2151323151122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075661575563.

The product of its digits is 3600, while the sum is 29.

Adding to 2151323151122 its reverse (2211513231512), we get a palindrome (4362836382634).

The spelling of 2151323151122 in words is "two trillion, one hundred fifty-one billion, three hundred twenty-three million, one hundred fifty-one thousand, one hundred twenty-two".